Display panel or portion thereof with a transitional graphical user interface



FIG. 1 is a front view of a display panel or portion thereof with atransitional graphical user interface, showing a first image in asequence of a first embodiment of the new design;

FIG. 2 is a second image thereof;

FIG. 3 is a third image thereof;

FIG. 4 is a fourth image thereof;

FIG. 5 is a fifth image thereof;

FIG. 6 is a sixth image thereof;

FIG. 7 is a seventh image thereof;

FIG. 8 is an eighth image thereof;

FIG. 9 is a ninth image thereof;

FIG. 10 is a tenth image thereof;

FIG. 11 is an eleventh image thereof;

FIG. 12 is a twelfth image thereof;

FIG. 13 is a thirteenth image thereof;

FIG. 14 is a fourteenth image thereof;

FIG. 15 is a fifteenth image thereof;

FIG. 16 is a sixteenth image thereof;

FIG. 17 is a seventeenth image thereof;

FIG. 18 is an eighteenth image thereof;

FIG. 19 is a nineteenth image thereof;

FIG. 20 is a twentieth image thereof;

FIG. 21 is a twenty-first image thereof;

FIG. 22 is a twenty-second image thereof;

FIG. 23 is a twenty-third image thereof;

FIG. 24 is a twenty-fourth image thereof;

FIG. 25 is a twenty-fifth image thereof;

FIG. 26 is a twenty-sixth image thereof;

FIG. 27 is a twenty-seventh image thereof;

FIG. 28 is a twenty-eighth image thereof;

FIG. 29 is a twenty-ninth image thereof;

FIG. 30 is a thirtieth image thereof;

FIG. 31 is a thirty-first image thereof;

FIG. 32 is a front view of a display panel or portion thereof with atransitional graphical user interface, showing a first image in asequence of a second embodiment of the new design;

FIG. 33 is a second image thereof;

FIG. 34 is a third image thereof;

FIG. 35 is a fourth image thereof;

FIG. 36 is a fifth image thereof;

FIG. 37 is a sixth image thereof;

FIG. 38 is a seventh image thereof;

FIG. 39 is an eighth image thereof;

FIG. 40 is a ninth image thereof;

FIG. 41 is a tenth image thereof;

FIG. 42 is an eleventh image thereof;

FIG. 43 is a twelfth image thereof;

FIG. 44 is a thirteenth image thereof;

FIG. 45 is a fourteenth image thereof;

FIG. 46 is a fifteenth image thereof;

FIG. 47 is a sixteenth image thereof;

FIG. 48 is a seventeenth image thereof;

FIG. 49 is an eighteenth image thereof;

FIG. 50 is a nineteenth image thereof;

FIG. 51 is a twentieth image thereof;

FIG. 52 is a twenty-first image thereof;

FIG. 53 is a twenty-second image thereof;

FIG. 54 is a twenty-third image thereof;

FIG. 55 is a twenty-fourth image thereof;

FIG. 56 is a twenty-fifth image thereof;

FIG. 57 is a twenty-sixth image thereof;

FIG. 58 is a twenty-seventh image thereof;

FIG. 59 is a twenty-eighth image thereof;

FIG. 60 is a twenty-ninth image thereof;

FIG. 61 is a thirtieth image thereof; and,

FIG. 62 is a thirty-first image thereof.

The subject matter of the present disclosure includes a process orperiod during which one image transitions into another. The appearanceof the transitional image sequentially transitions between the imagesshown in FIGS. 1-31, and FIGS. 32-62. The process or period in which oneimage transitions to another image forms no part of the claimed design.

The broken lines depicting a display panel or portion thereof areincluded for the purpose of illustrating environmental structure andform no part of the claimed design. The broken lines depicting portionsof a graphical user interface are included for illustratingenvironmental aspects of a display panel or portion thereof with atransitional mixed reality graphical user interface and form no part ofthe claimed design.

CLAIM The ornamental design for a display panel or portion thereof witha transitional graphical user interface, as shown and described.